Gradually typed Link

Turn the Link class into a template abstracting over the link's argument and
return types, but provide default template arguments that keep the generic,
unsafe "void* in, sal_IntPtr out" behvior.  That way, individual uses of the
Link class can be updated over time.

All the related macros are duplicated with ..._TYPED counterparts, that
additionally take the RetType (except for LINK_TYPED, which manages to infer the
relevant types from the supplied Member).

(It would have been attractive to change the "untyped" LinkStubs from taking a
void* to a properly typed ArgType parameter, too, but that would cause
-fsanitize=function to flag uses of "untyped" Link::Call.)

Change-Id: I3b0140378bad99abbf240140ebb4a46a05d2d2f8

1 files changed, 6 insertions, 6 deletions

diff --git a/include/vcl/scrbar.hxx b/include/vcl/scrbar.hxx
index 3a16f9e4359e..71bda7168c3b 100644
--- a/include/vcl/scrbar.hxx
+++ b/include/vcl/scrbar.hxx
@@ -65,8 +65,8 @@ private:
     ScrollType      meDDScrollType;
     bool            mbCalcSize;
     bool            mbFullDrag;
-    Link            maScrollHdl;
-    Link            maEndScrollHdl;
+    Link<>          maScrollHdl;
+    Link<>          maEndScrollHdl;
 
     SAL_DLLPRIVATE Rectangle*   ImplFindPartRect( const Point& rPt );
     using Window::ImplInit;
@@ -134,10 +134,10 @@ public:
     long            GetDelta() const { return mnDelta; }
     ScrollType      GetType() const { return meScrollType; }
 
-    void            SetScrollHdl( const Link& rLink ) { maScrollHdl = rLink; }
-    const Link&     GetScrollHdl() const { return maScrollHdl;    }
-    void            SetEndScrollHdl( const Link& rLink ) { maEndScrollHdl = rLink; }
-    const Link&     GetEndScrollHdl() const { return maEndScrollHdl; }
+    void            SetScrollHdl( const Link<>& rLink ) { maScrollHdl = rLink; }
+    const Link<>&   GetScrollHdl() const { return maScrollHdl;    }
+    void            SetEndScrollHdl( const Link<>& rLink ) { maEndScrollHdl = rLink; }
+    const Link<>&   GetEndScrollHdl() const { return maEndScrollHdl; }
 
     virtual Size    GetOptimalSize() const SAL_OVERRIDE;
 };